Glassy Rocks Can Form Either from Extremely Rapid Cooling or High

Q178: What name would you assign to a

Q179: Mafic rocks like basalt and gabbro _.<br>A)are

Q180: Magmas are formed by partial melting in

Q181: Lava flows are typically finer grained than

Q182: Vesicles are _.<br>A)cavities or bubble-shaped holes formed

Q184: Olivine is an important mineral in peridotites

Q185: What are vesicles?<br>A)open voids in an igneous

Q186: Which of the following is the major

Q187: The earliest formed crystals (phenocrysts)in a magma

Q188: Examine the words and/or phrases for each